San Antonio, TX
Bexar County · Texas · United States
Home to 11,944 people across 2.711 square miles.
At a glance
78204 by the numbers
Every figure below comes from the 2019–2023 American Community Survey 5-Year Estimates, the Census Gazetteer, or is computed from those. Margins of error are shown where they matter.
Location
Where 78204 is
| Coordinates | 29.404404, -98.505028 |
|---|---|
| Time zone | America/Chicago |
| County | Bexar County |
| State | Texas (TX) |
| Land area | 2.711 mi² |
| Coordinate source | Census ZCTA internal point |
Local time
America/Chicago
Current weather
Live from the National Weather Service
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Distance to major cities
Straight-line, computed from coordinates
| San Antonio, TX | 1.5 mi |
|---|---|
| Houston, TX | 190.0 mi |
| Dallas, TX | 254.0 mi |
| Denver, CO | 803.2 mi |
People
Who lives in 78204
11,944 residents in 5,052 households, averaging 2.36 people per household. The largest age group is under 18 at 20.3% of residents, and 42.4% of households are a single person living alone.
Age distribution
Share of residents by age band
Households
Composition and size
| Total households | 5,052 |
|---|---|
| Average household size | 2.36 |
| Family households | 51.9% |
| Living alone | 42.4% |
| Median age | 36.2 years |
| Households with internet | 89.7% |
Race & ethnicity
Census race categories. Hispanic or Latino origin is asked separately and overlaps these groups.
Income & work
What people earn in 78204
The median household here earns $54,667 a year, below the US median of $70,109, which puts 78204 ahead of 23% of American ZIP codes. 16.0% of residents live below the poverty line.
Compared to the US
This ZIP against the national median
| Median household income | $54,667 ±$18,393 |
|---|---|
| Per capita income | $36,941 |
| Poverty rate | 16.0% |
| Unemployment rate | 5.9% |
| Labor force participation | 62.9% |
Household income distribution
Share of households in each bracket
Educational attainment among residents 25 and older: 26.5% hold a bachelor's degree or higher, 77.9% finished high school.
Housing
Homes and rent in 78204
A typical home is valued at $142,200, and median rent runs $1,516 a month. Ownership is close to even at 47.7% owned, and the typical building went up in 1955.
Costs
Typical values
| Median home value | $142,200 |
|---|---|
| Median gross rent | $1,516/mo |
| Median year built | 1955 |
| Housing units | 6,210 |
| Vacancy rate | 18.6% |
Own vs. rent
Of 5,052 occupied units
| Owner households | 2,409 |
|---|---|
| Renter households | 2,643 |
Building types
Units by structure size
Getting to work
How 78204 commutes
71.1% of workers drove alone, and the average one-way trip takes 24.6 minutes.
Mode of transport
Workers 16 and older
Travel time
Mean commute 24.6 minutes
Overview
Understanding ZIP code 78204
ZIP code 78204 is assigned to San Antonio, TX, and falls within Bexar County. Like every US postal code, it began as a mail-routing device rather than a geographic boundary — the US Postal Service groups delivery routes under a single code so carriers and sorting equipment can process mail efficiently. Today it also serves as a practical shorthand for the area itself: roughly 11,944 people live inside it.
At 4,406 residents per square mile spread over 2.711 square miles, 78204 reads as a densely built-up area. It is a mid-sized postal code by population, and density shapes almost everything else on this page — how people get to work, whether they own or rent, and what housing costs.
Household earnings run below the national median. At $54,667, 78204 sits in the lower half, ahead of 23% of them. The US median for comparison is $70,109. Bear in mind that median income describes the midpoint household, not the average — it is not pulled upward by a handful of very high earners the way a mean would be.
Living here
What life in San Antonio looks like
Housing in 78204 costs below the national median. A typical home is valued at $142,200 against a US median of $207,500, and median gross rent runs $1,516 a month. The split between owning and renting is fairly even at 47.7% owner-occupied, which tends to indicate a mix of housing types rather than one dominant form.
The building stock is dominated by detached single-family houses, which account for 60.4% of housing units here. The median construction year is 1955, making the housing here mid-century.
The population skews broadly in line with the national age profile, with a median age of 36.2 against 42 nationally. The average household holds 2.36 people, and 51.9% are family households.
Getting to work takes 24.6 minutes on average one way. The dominant mode is drove alone at 71.1% of workers, while 11.7% work from home. Commute patterns are one of the better proxies for how a place actually functions day to day.
Where to stay
Where to stay in San Antonio, TX
San Antonio is a built-up area, so you will generally find a mix of chain hotels near the main approach roads and a smaller number of independent properties closer to the centre. Staying in 78204 itself often costs less than an equivalent room in the nearest downtown while keeping you close to it.
Median rent in 78204 is $1,516 a month, which sits in the middle of the national range; accommodation pricing locally tends to be similarly mid-market. For reference, San Antonio, TX is about 1.5 miles away in a straight line, which is worth factoring in if you are comparing a stay here against one closer to the city centre.
Availability and pricing change constantly, so the live search below will give you a more accurate picture than any figure we could publish here. It opens results for this area on Booking.com.
Opens Booking.com in a new tab. We are not affiliated with Booking.com and receive nothing from this link.
Practical uses
What ZIP code 78204 is used for
Beyond addressing mail, 78204 does a lot of quiet administrative work. Retailers use it to calculate shipping and sales tax at checkout. Insurers use it to set premiums, since risk profiles vary geographically. Employers and marketers use it to define service areas. Government agencies use it to route benefits and organise reporting. If you have ever been asked for a postal code by a form that clearly does not intend to send you anything, this is why.
For anyone weighing a move, 78204 offers a compact profile of San Antonio: 11,944 residents, a median household income of $54,667, 26.5% of adults holding a bachelor's degree or higher, and an unemployment rate of 5.9%. A handful of figures like these answer more relocation questions than most neighbourhood guides do.
One caution worth repeating: a postal code is not a neighbourhood. 78204 may cover parts of several distinct areas, and a single neighbourhood in San Antonio may be split across more than one code. Boundaries also shift as USPS adjusts delivery routes. Treat the figures here as describing a delivery area, which is what they actually measure.
Nearby
ZIP codes near 78204
The eight closest postal codes by centroid distance, each with its own full profile. You can also browse every Texas ZIP code or use the ZIP Express Lookup to search by city, county or time zone.
Other ZIP codes in San Antonio
San Antonio is served by 83 postal codes.
More in Bexar County
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Questions
Common questions about 78204
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Methodology
Where this data comes from
- Postal geography — GeoNames open postal code database (CC BY 4.0), cross-checked against the US Census Gazetteer.
- Demographics, income, housing, commute — US Census Bureau, American Community Survey 2019–2023 5-Year Estimates, ZIP Code Tabulation Area 78204. Tables B01001, B01002, B01003, B02001, B03003, B08301, B08303, B11001, B15003, B17001, B19001, B19013, B19301, B23025, B25002, B25003, B25024, B25035, B25064, B25077, B28002.
- Land and water area — US Census Bureau 2023 Gazetteer Files.
- Weather — NOAA National Weather Service, fetched live in your browser.
- Map — OpenStreetMap contributors (ODbL).